Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * 32bit -> 64bit ioctl wrapper for sequencer API |
| 3 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | /* This file included from seq.c */ |
| 22 | |
| 23 | #include <linux/compat.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
Takashi Iwai | c7e0b5b | 2005-11-17 14:04:02 +0100 | [diff] [blame] | 26 | struct snd_seq_port_info32 { |
| 27 | struct snd_seq_addr addr; /* client/port numbers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | char name[64]; /* port name */ |
| 29 | |
| 30 | u32 capability; /* port capability bits */ |
| 31 | u32 type; /* port type bits */ |
| 32 | s32 midi_channels; /* channels per MIDI port */ |
| 33 | s32 midi_voices; /* voices per MIDI port */ |
| 34 | s32 synth_voices; /* voices per SYNTH port */ |
| 35 | |
| 36 | s32 read_use; /* R/O: subscribers for output (from this port) */ |
| 37 | s32 write_use; /* R/O: subscribers for input (to this port) */ |
| 38 | |
| 39 | u32 kernel; /* reserved for kernel use (must be NULL) */ |
| 40 | u32 flags; /* misc. conditioning */ |
| 41 | unsigned char time_queue; /* queue # for timestamping */ |
| 42 | char reserved[59]; /* for future use */ |
| 43 | }; |
| 44 | |
Takashi Iwai | c7e0b5b | 2005-11-17 14:04:02 +0100 | [diff] [blame] | 45 | static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd, |
| 46 | struct snd_seq_port_info32 __user *data32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | { |
| 48 | int err = -EFAULT; |
Takashi Iwai | c7e0b5b | 2005-11-17 14:04:02 +0100 | [diff] [blame] | 49 | struct snd_seq_port_info *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | mm_segment_t fs; |
| 51 | |
Nicolas Boichat | 9586495 | 2016-01-18 21:35:01 +0800 | [diff] [blame] | 52 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
| 53 | if (!data) |
| 54 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
Nicolas Boichat | 9586495 | 2016-01-18 21:35:01 +0800 | [diff] [blame] | 56 | if (copy_from_user(data, data32, sizeof(*data32)) || |
| 57 | get_user(data->flags, &data32->flags) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | get_user(data->time_queue, &data32->time_queue)) |
| 59 | goto error; |
| 60 | data->kernel = NULL; |
| 61 | |
| 62 | fs = snd_enter_user(); |
| 63 | err = snd_seq_do_ioctl(client, cmd, data); |
| 64 | snd_leave_user(fs); |
| 65 | if (err < 0) |
| 66 | goto error; |
| 67 | |
| 68 | if (copy_to_user(data32, data, sizeof(*data32)) || |
| 69 | put_user(data->flags, &data32->flags) || |
| 70 | put_user(data->time_queue, &data32->time_queue)) |
| 71 | err = -EFAULT; |
| 72 | |
| 73 | error: |
| 74 | kfree(data); |
| 75 | return err; |
| 76 | } |
| 77 | |
| 78 | |
| 79 | |
| 80 | /* |
| 81 | */ |
| 82 | |
| 83 | enum { |
Takashi Iwai | c7e0b5b | 2005-11-17 14:04:02 +0100 | [diff] [blame] | 84 | SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32), |
| 85 | SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32), |
| 86 | SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32), |
| 87 | SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32), |
| 88 | SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | }; |
| 90 | |
| 91 | static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) |
| 92 | { |
Takashi Iwai | c7e0b5b | 2005-11-17 14:04:02 +0100 | [diff] [blame] | 93 | struct snd_seq_client *client = file->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | void __user *argp = compat_ptr(arg); |
| 95 | |
Takashi Iwai | 7eaa943 | 2008-08-08 17:09:09 +0200 | [diff] [blame] | 96 | if (snd_BUG_ON(!client)) |
| 97 | return -ENXIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | switch (cmd) { |
| 100 | case SNDRV_SEQ_IOCTL_PVERSION: |
| 101 | case SNDRV_SEQ_IOCTL_CLIENT_ID: |
| 102 | case SNDRV_SEQ_IOCTL_SYSTEM_INFO: |
| 103 | case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO: |
| 104 | case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO: |
| 105 | case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT: |
| 106 | case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT: |
| 107 | case SNDRV_SEQ_IOCTL_CREATE_QUEUE: |
| 108 | case SNDRV_SEQ_IOCTL_DELETE_QUEUE: |
| 109 | case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO: |
| 110 | case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO: |
| 111 | case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE: |
| 112 | case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS: |
| 113 | case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO: |
| 114 | case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO: |
| 115 | case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER: |
| 116 | case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER: |
| 117 | case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT: |
| 118 | case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT: |
| 119 | case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL: |
| 120 | case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL: |
| 121 | case SNDRV_SEQ_IOCTL_REMOVE_EVENTS: |
| 122 | case SNDRV_SEQ_IOCTL_QUERY_SUBS: |
| 123 | case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION: |
| 124 | case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT: |
| 125 | case SNDRV_SEQ_IOCTL_RUNNING_MODE: |
| 126 | return snd_seq_do_ioctl(client, cmd, argp); |
| 127 | case SNDRV_SEQ_IOCTL_CREATE_PORT32: |
| 128 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp); |
| 129 | case SNDRV_SEQ_IOCTL_DELETE_PORT32: |
| 130 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp); |
| 131 | case SNDRV_SEQ_IOCTL_GET_PORT_INFO32: |
| 132 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp); |
| 133 | case SNDRV_SEQ_IOCTL_SET_PORT_INFO32: |
| 134 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp); |
| 135 | case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32: |
| 136 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp); |
| 137 | } |
| 138 | return -ENOIOCTLCMD; |
| 139 | } |